2 Level 8 monstersOnce per Battle Phase, at the start of your Battle Phase: You can detach 1 Xyz Material from this card; negate the effects of all other face-up monsters on the field, and their ATK and DEF become their original ATK and DEF. During your Battle Phase, if this effect was used this turn and your opponent activates a card effect: This card gains 1000 ATK until the end of the Battle Phase, also it can attack twice during each Battle Phase this turn.